A handful of bug fixes

1) Quicksearch couldn't find subtasks. Now it can.
2) When entering a due-time, capitalizing PM will now be recognized.
3) Completing a task has always stopped its timer, but it wasn't always visually stopped until you refreshed the page. A page refresh is no longer necessary.
4) If there was an ampersand (&) inside a folder, context or goal name, that name will no longer get visually truncated when editing a task.